| Hemel Hempstead to Krosno Odrzanskie | 662.88 mi (1,066.80 km) |
| Hemel Hempstead to Krotoszyn | 764.42 mi (1,230.21 km) |
| Hemel Hempstead to Kruszwica | 796.08 mi (1,281.17 km) |
| Hemel Hempstead to Krynica | 950.16 mi (1,529.13 km) |
| Hemel Hempstead to Krzeszowice | 879.43 mi (1,415.31 km) |
| Hemel Hempstead to Kudowa-Zdroj | 729.05 mi (1,173.30 km) |
| Hemel Hempstead to Kutno | 841.93 mi (1,354.95 km) |
| Hemel Hempstead to Kwidzyn | 820.26 mi (1,320.08 km) |
| Hemel Hempstead to Lancut | 991.82 mi (1,596.17 km) |
| Hemel Hempstead to Lapy | 984.45 mi (1,584.32 km) |
| Hemel Hempstead to Lask | 837.50 mi (1,347.83 km) |
| Hemel Hempstead to Laziska Gorne | 845.63 mi (1,360.91 km) |
| Hemel Hempstead to Lebork | 776.83 mi (1,250.19 km) |
| Hemel Hempstead to Leczna | 1,000.04 mi (1,609.41 km) |
| Hemel Hempstead to Leczyca | 836.22 mi (1,345.77 km) |
